From Hugoniot formula of divergent detonation, we have analyzed the cause that the numerical results of running time and physical state cannot be simultaneously accurate enough for a divergent detonation wave when the grid length is not small enough. 从曲面爆轰波的Hugoniot关系式出发,应用燃烧模型模拟散心爆轰波的传播,分析了空间步长不是足够小时,不能同时准确给出爆轰波走时及波阵面物理量的原因。
The effect of divergent wind excited by external thermal forcing on propagation of low frequency Rossby wave is investigated in a barotropic atmosphere. The dispersion relation and group velocity expression of low-frequency Rossby wave with divergent wind are derived. 文中研究了热力强迫所激发的辐散风对低频Rossby波能量传播的影响,推导出辐散风作用下的Rossby波的频散关系和群速度表达式。
Frequency divergent equation of surface wave for half-space vertical inhomogeneous complex media 半空间垂向非均匀复杂介质面波频散方程
Especially, we discussed some interesting properties about Fresnel diffraction field and Talbot image, when sinusoidal grating is illuminated by divergent spherical wave. Such as, the amplifying effect on the field of divergent spherical wave, the condition of Talbot effect to be observed, etc. 特别地,我们讨论了发散球面波照明的情况下,菲涅耳衍射光场和泰伯像所具有的一些有趣的性质,如球面波对光场的放大作用,泰伯效应存在的条件等等。